Arabidopsis Thaliana Abscisic Acid Signaling Pathway #20
Description
The abscisic acid signaling pathway is well-studied, especially in model organisms such as Arabidopsis Thaliana. The abscisic acid pathway consists of three core components: PYLs, PP2Cs, and SnRK2s. PYLs act as abscisic acid (ABA) receptors. When ABA is not bound to PYLs, PP2Cs inhibit SnRK2 activity. However, in the presence of ABA, PYLs will contact and inhibit PP2Cs. Once PP2C inhibition is removed, SnRK2s target ABA-responsive element binding factors to regulate gene expression.
